Rotary tablet press

Abstract

The utility model belongs to the field of pharmacy, particularly relates to a rotary tablet press, and aims to solve the problems that in the continuous tablet pressing process of an existing device, the tablet pressing quality is unstable, the forming effect is poor easily, no auxiliary discharging device exists, and tablet discharging is not smooth. The top of the rack is fixedly connected with a supporting plate, the periphery of the top of the supporting plate is fixedly connected with protective plates, a rotating shaft rotationally penetrates through the top of the supporting plate, and the outer wall of the rotating shaft is provided with a tabletting assembly used for tabletting. The continuous and efficient tablet pressing process is achieved, the upper punch and the lower punch get close to each other under the abutting action of the fixing block and the first arc-shaped block, raw materials are extruded into tablets, the tablets deviate outwards under the action of centrifugal force and slide down along the surface of the discharging groove after being blocked by the annular baffle, and the discharging process is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pharmaceutical technology field especially relates to a rotary tablet press. BACKGROUND

[0002] In the pharmaceutical industry, the tablet press is a commonly used equipment for pressing raw materials into tablets. The traditional tablet press is mostly single punch type, that is, only one tablet can be pressed at a time, and the production efficiency is low. In order to improve the production efficiency, rotary tablet presses gradually appear in the market, which realize continuous and efficient tabletting process through rotating dies and punches.

[0003] However, the existing rotary tablet press still has some deficiencies in structure design and working principle. In the process of continuous tabletting, the tabletting quality is unstable, only one end is extruded, and the forming effect is poor. In addition, there is no auxiliary discharging device, and the tablets are randomly stacked, which affects the production efficiency and quality of the tablets. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems of unstable tabletting quality, only one end extrusion, poor forming effect, and no auxiliary discharging device in the process of continuous tabletting in the prior art, and puts forward a rotary tablet press.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A rotary tablet press, comprising a rack, a support plate fixedly connected to the top of the rack, a protective plate fixedly connected to the top of the support plate, a rotating shaft rotatingly penetrating the top of the support plate, and a tabletting assembly provided on the outer wall of the rotating shaft for tabletting;

[0007] The inside of the rack is provided with a driving assembly for driving the rotating shaft to rotate;

[0008] The outer wall of the protective plate is provided with a discharging assembly for discharging tablets.

[0009] In a possible design, the tabletting assembly comprises an upper die, a middle die and a lower die fixedly connected to the outer wall of the rotating shaft, the middle die is located between the upper die and the lower die, a plurality of lower punches slidingly penetrating the inside of the lower die, and a plurality of forming holes are formed in the inside of the middle die.

[0010] In a possible design, the upper die is internally provided with a plurality of mounting holes, a plurality of upper punches are slidably penetrated into the mounting holes, an annular block is fixedly connected to the outer wall of the upper punch, the same tension spring is fixedly connected between the top of the annular block and the inner wall of the mounting hole, the tension spring is sleeved on the outer wall of the upper punch, and the upper punch and the lower punch correspond to the forming hole.

[0011] In a possible design, the driving assembly comprises a driving motor fixedly connected to the inside of the rack, the outer wall of the rotating shaft is fixedly sleeved with a second synchronous wheel, the output shaft of the driving motor is fixedly sleeved with a first synchronous wheel, and the outer walls of the first synchronous wheel and the second synchronous wheel are drivingly sleeved with the same synchronous belt.

[0012] In a possible design, the discharging assembly comprises a discharging groove fixedly penetrated through one side of the protection plate, the discharging groove is inclined, one end of the discharging groove is fixedly connected with an annular baffle, the annular baffle is sleeved on the outside of the middle die, and the side inner wall of the annular baffle is fixedly connected with an arc-shaped sheet.

[0013] In a possible design, the top of the support plate is fixedly connected with a first arc-shaped block and a second arc-shaped block, the first arc-shaped block and the second arc-shaped block are used in cooperation with the lower punch, and the height of the second arc-shaped block is greater than that of the first arc-shaped block.

[0014] In a possible design, one side of the rack is fixedly connected with a first mounting rod, one side of the first mounting rod is fixedly connected with a feeding barrel, and the feeding barrel is used for feeding the forming hole.

[0015] In a possible design, the top of the support plate is fixedly connected with side plates on both sides, the same second mounting rod is fixedly connected between the two side plates, the outer wall of the second mounting rod is fixedly sleeved with a fixing block, and the fixing block is used in cooperation with the upper punch.

[0016] In the application, in use, raw materials are sent into the hole of the middle die through the feeding barrel, the driving motor is started, the output shaft of the driving motor drives the first synchronous wheel to rotate, the first synchronous wheel drives the synchronous belt to rotate, the synchronous belt drives the second synchronous wheel to rotate, the second synchronous wheel drives the rotating shaft to rotate, and the rotating shaft drives the upper die, the lower die and the middle die on the outer wall to rotate.

[0017] At this time, the lower part of the lower punch is stopped by the lower first arc-shaped block, while the upper punch is stopped by the fixed block, and then the upper punch and the lower punch are close to each other to extrude the raw material into tablets. When the upper punch rotates to the side of the fixed block, the upper punch moves up under the action of the tension spring, and then separates from the lower punch. The pressed tablets fall on the top of the lower punch. When the lower punch with the tablets moves to the second arc-shaped block, the tablets are ejected by the lower punch because the height of the second arc-shaped block is greater than that of the first arc-shaped block.

[0018] When the tablets are ejected, the middle mold continuously rotates, and the tablets are deviated to the outside under the action of centrifugal force and are blocked by the annular baffle. When the tablets contact one side of the arc-shaped piece, the tablets slide along the surface of the discharge groove to complete the discharging process.

[0019] Beneficial effects: efficient continuous production: the upper mold, the middle mold and the lower mold of the outer wall are rotated by the driving motor to realize continuous and efficient tabletting process. This design greatly improves the production efficiency and meets the demand of large-scale production.

[0020] Stable tabletting quality: the upper punch and the lower punch are close to each other under the action of the fixed block and the first arc-shaped block to extrude the raw material into tablets. At the same time, the setting of the tension spring makes the upper punch move up automatically after tabletting, and separates from the lower punch, avoiding the adhesion and damage of the tablets, and ensuring the stability of the tabletting quality.

[0021] Smooth discharging: the tablets are deviated to the outside under the action of centrifugal force and are blocked by the annular baffle, and then slide along the surface of the discharge groove to complete the discharging process. This design makes the tablets smoothly discharged from the mold, avoiding the accumulation and blockage of the tablets, and improving the operation efficiency of the equipment.

[0022] Compact structure and easy maintenance: the rotary tablet press of the present application has a compact structure, and the connection between the components is simple and reliable, easy to disassemble and clean. At the same time, the setting of the protective plate also protects the internal equipment from the interference and damage of the external environment, prolonging the service life of the equipment.

[0023] Strong adaptability: by adjusting the specifications and quantities of the upper mold, the middle mold and the lower mold, the rotary tablet press of the present application can adapt to the production requirements of different types and specifications of tablets, and has strong adaptability and flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A three-dimensional structure schematic view of a rotary tablet press is provided for the present application;

[0025] Figure 2 A three-dimensional structure schematic view of a rotary tablet press from a second perspective is provided for the present application;

[0026] Figure 3 An internal structure schematic view of a rotary tablet press is provided for the utility model;

[0027] Figure 4 A three-dimensional structure schematic view of a driving motor in the rotary tablet press is provided for the utility model;

[0028] Figure 5 A three-dimensional structure schematic view of an upper die in the rotary tablet press is provided for the utility model;

[0029] Figure 6 A three-dimensional structure schematic view of an annular baffle and a discharge chute in the rotary tablet press is provided for the utility model;

[0030] Figure 7 A three-dimensional structure schematic view of a lower die in the rotary tablet press is provided for the utility model.

[0031] In the drawing: 1, rack; 2, guard plate; 3, feeding barrel; 4, support plate; 5, first mounting rod; 6, discharge chute; 7, driving motor; 8, fixed block; 9, second mounting rod; 10, side plate; 11, upper die; 12, lower die; 13, annular baffle; 14, first synchronous wheel; 15, rotating shaft; 16, second synchronous wheel; 17, synchronous belt; 18, annular block; 19, upper punch; 20, mounting hole; 21, tension spring; 22, middle die; 23, arc-shaped piece; 24, first arc-shaped block; 25, lower punch; 26, second arc-shaped block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0033] Embodiment 1

[0034] Reference Figures 1-7The utility model relates to a tablet press, including: frame 1, the top of frame 1 is fixedly connected with support plate 4, the top of support plate 4 is fixedly connected with the guard board 2 all around, the top of support plate 4 is rotatably penetrated with rotating shaft 15, the outer wall of rotating shaft 15 is provided with the tabletting assembly for carrying out tabletting, the tabletting assembly includes the upper die 11, middle die 22 and lower die 12 of fixed connection in the outer wall of rotating shaft 15, middle die 22 is located between upper die 11 and lower die 12, the inside of lower die 12 is slidably penetrated with a plurality of lower punch 25, the inside of middle die 22 is provided with a plurality of forming holes, the inside of upper die 11 is provided with a plurality of mounting hole 20, the inside of mounting hole 20 is slidably penetrated with a plurality of upper punch 19, the outer wall of upper punch 19 is fixedly sleeved with annular block 18, the same tension spring 21 is fixedly connected between the top of annular block 18 and the inner wall of mounting hole 20, and the tension spring 21 is sleeved on the outer wall of upper punch 19, upper punch 19 and lower punch 25 correspond to the forming hole, at this time, the lower part lower punch 25 is resisted by the lower first arc block 24, and at the same time, the upper punch 19 on the upper side is resisted by fixed block 8, and then upper punch 19 and lower punch 25 are close to each other, and the raw material is extruded into a tablet, when upper punch 19 rotates to the side of fixed block 8, at this time, upper punch 19 is lifted under the action of the tension of tension spring 21, and then is separated from lower punch 25, and the pressed tablet falls on the top of lower punch 25, when the lower punch 25 with tablet moves to the second arc block 26, because the height of second arc block 26 is greater than the height of first arc block 24, at this time, the tablet is ejected by lower punch 25;

[0035] The inside of frame 1 is provided with the drive assembly for driving rotating shaft 15 to rotate, and the drive assembly includes the drive motor 7 of fixed connection in the inside of frame 1, the outer wall of rotating shaft 15 is fixedly sleeved with second synchronous wheel 16, the output shaft outer wall of drive motor 7 is fixedly sleeved with first synchronous wheel 14, and the outer walls of first synchronous wheel 14 and second synchronous wheel 16 are drivingly sleeved with the same synchronous belt 17, the raw material is sent into the hole inside of middle die 22 through feeding barrel 3, the drive motor 7 is started, the output shaft of drive motor 7 drives first synchronous wheel 14 to rotate, first synchronous wheel 14 drives synchronous belt 17 to rotate, synchronous belt 17 drives second synchronous wheel 16 to rotate, second synchronous wheel 16 drives rotating shaft 15 to rotate, and rotating shaft 15 drives the outer wall of upper die 11, lower die 12 and middle die 22 to rotate;

[0036] The outer wall of the protection plate 2 is provided with a discharging assembly for discharging the tablets, the discharging assembly comprises a discharging groove 6 fixed through one side of the protection plate 2, the discharging groove 6 is arranged obliquely, one end of the discharging groove 6 is fixedly connected with a ring-shaped baffle 13, the ring-shaped baffle 13 is sleeved outside the middle mold 22, the inner wall of one side of the ring-shaped baffle 13 is fixedly connected with an arc-shaped sheet 23, the top of the supporting plate 4 is fixedly connected with a first arc-shaped block 24 and a second arc-shaped block 26, the first arc-shaped block 24 and the second arc-shaped block 26 are used in cooperation with the lower punch 25, the height of the second arc-shaped block 26 is greater than that of the first arc-shaped block 24, when the tablets are ejected, under the continuous rotation of the middle mold 22, the tablets are deviated outward under the action of the centrifugal force and are blocked by the ring-shaped baffle 13, when the tablets contact one side of the arc-shaped sheet 23, the tablets slide along the surface of the discharging groove 6, and the discharging process is completed.

[0037] The present application can be used in the field of pharmacy, and can also be used in other fields applicable to the present application.

[0038] Embodiment 2

[0039] Reference Figures 1-7 On the basis of embodiment 1, a rotary tablet press is improved and applied to the field of pharmacy, one side of the rack 1 is fixedly connected with a first mounting rod 5, one side of the first mounting rod 5 is fixedly connected with a feeding barrel 3, the feeding barrel 3 is used for feeding the forming holes, the top of the supporting plate 4 is fixedly connected with side plates 10 on both sides, one same second mounting rod 9 is fixedly connected between the two side plates 10, a fixed block 8 is fixedly sleeved on the outer wall of the second mounting rod 9, and the fixed block 8 is used in cooperation with the upper punch 19.

[0040] However, as known to those skilled in the art, the working principle and wiring method of the driving motor 7 are common, and they all belong to conventional means or common general knowledge, which will not be described here again, and those skilled in the art can make any selection or arrangement according to their needs or convenience.

[0041] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A rotary tablet press, characterized in that, Include: Frame (1), the top of the frame (1) is fixedly connected with a support plate (4), the top of the support plate (4) is fixedly connected with a protection plate (2) around, the top of the support plate (4) is rotatably penetrated with a rotating shaft (15), the outer wall of the rotating shaft (15) is provided with a tabletting assembly for tabletting; The inside of the frame (1) is provided with a driving assembly for driving the rotating shaft (15) to rotate; The outer wall of the protection plate (2) is provided with a discharge assembly for discharging tablets.

2. A rotary tablet press according to claim 1, characterized in that The tabletting assembly includes an upper die (11) fixedly connected to the outer wall of the rotating shaft (15), a middle die (22) and a lower die (12), the middle die (22) is located between the upper die (11) and the lower die (12), a plurality of lower punches (25) are slidably penetrated into the inside of the lower die (12), and a plurality of forming holes are formed in the inside of the middle die (22).

3. A rotary tablet press according to claim 2, wherein, A plurality of mounting holes (20) are formed in the inside of the upper die (11), a plurality of upper punches (19) are slidably penetrated into the inside of the mounting hole (20), the outer wall of the upper punch (19) is fixedly sleeved with an annular block (18), the same tension spring (21) is fixedly connected between the top of the annular block (18) and the inner wall of the mounting hole (20), the tension spring (21) is sleeved on the outer wall of the upper punch (19), and the upper punch (19) and the lower punch (25) correspond to the forming hole.

4. A rotary tablet press according to claim 1, wherein The driving assembly includes a driving motor (7) fixedly connected to the inside of the frame (1), the outer wall of the rotating shaft (15) is fixedly sleeved with a second synchronous wheel (16), the output shaft of the driving motor (7) is fixedly sleeved with a first synchronous wheel (14), and the outer walls of the first synchronous wheel (14) and the second synchronous wheel (16) are drivingly sleeved with the same synchronous belt (17).

5. A rotary tablet press according to claim 1, wherein The discharge assembly includes a discharge chute (6) fixedly penetrating through one side of the protection plate (2), the discharge chute (6) is inclined, one end of the discharge chute (6) is fixedly connected with an annular baffle (13), the annular baffle (13) is sleeved on the outside of the middle die (22), and the inner wall of one side of the annular baffle (13) is fixedly connected with an arc-shaped sheet (23).

6. A rotary tablet press according to claim 1, wherein The top of the support plate (4) is fixedly connected with a first arc-shaped block (24) and a second arc-shaped block (26), the first arc-shaped block (24) and the second arc-shaped block (26) are used in cooperation with the lower punch (25), and the height of the second arc-shaped block (26) is greater than that of the first arc-shaped block (24).

7. A rotary tablet press according to claim 1, wherein One side of the frame (1) is fixedly connected with a first mounting rod (5), one side of the first mounting rod (5) is fixedly connected with a feeding barrel (3), and the feeding barrel (3) is used for feeding the forming hole.

8. A rotary tablet press according to claim 1, wherein The top of the support plate (4) is fixedly connected with a side plate (10) on both sides, a second mounting rod (9) is fixedly connected between the two side plates (10), the outer wall of the second mounting rod (9) is fixedly sleeved with a fixed block (8), and the fixed block (8) is used in cooperation with the upper punch (19).

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